Synthesis and charge-discharge properties of 2LiF-NiF<sub>2</sub> composite and Li<sub>2</sub>NiF<sub>4</sub> as a cathode material for Li-ion batteries.
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- Kimura Noritaka
- Graduate School of Science and Technology, Shizuoka University
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- Nasu Hiromasa
- Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University
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- Kohno Yoshiumi
- Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University
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- Tomita Yasumasa
- Graduate School of Science and Technology, Shizuoka University Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University
抄録
<p>2LiF-NiF2 composites are synthesized by the mechanical milling of LiF and NiF2 in a molar ratio of 2 : 1 for 72 h, and Li2NiF4 are synthesized by calcination at 673 K. The synthesized samples are investigated by XRD, cyclic voltammetry, and charge-discharge measurements. XRD peaks of the 2LiF-NiF2 composite are broad and the discharge capacity is 44 mAh/g at 0.05 C for voltages of 2.0–4.8 V. After calcination, the XRD peaks become sharp and most peaks are agreement with Li2NiF4. Li2NiF4 obtained by calcination shows a discharge capacity of 96 mAh/g at 0.05 C and 118 mAh/g at 0.02 C for voltages of 2.0–4.8 V. 2LiF-NiO composites are also obtained by the milling of LiF and NiO in a molar ratio of 2 : 1 for 72 h, and shows a discharge capacity of 146 mAh/g. The discharge capacity of 2LiF-NiO at 3C was maintained that of 70 % of 0.1C.</p>
収録刊行物
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- Transactions of the Materials Research Society of Japan
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Transactions of the Materials Research Society of Japan 45 (1), 15-18, 2020-02-01
一般社団法人 日本MRS
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詳細情報 詳細情報について
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- CRID
- 1390565134825089024
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- NII論文ID
- 130007793986
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- ISSN
- 21881650
- 13823469
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- KAKEN
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- 抄録ライセンスフラグ
- 使用不可